Octal: Pocket Synth

Octal: Pocket Synth

Eight buttons, endless music

2 ratings
1 review
Free
In-App Purchases

Details

Released
October 15, 2026
Updated
October 22, 2026

Features

Octal: Pocket Synth video #1 for iPhone
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About

This app transforms your phone into a musical instrument with eight intuitive buttons that always create harmonious chords or notes. Easily record loops, layer beats, and arrange them into full songs. Explore a variety of sounds and share your creations.

✓Eight-button chord/note interface
✓Loop recording and editing
✓Song arrangement
✓Diverse sound library
✓Undo/history functionality
✓Audio file sharing
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What's New in Octal

1.2.0

October 22, 2026

• Real instruments: 30 new beads play recordings of real instruments. Grand and upright pianos, four electric pianos, guitars, basses, alto and tenor sax, a muted trumpet in Mute's place, horn stabs, strings, pizzicato, harp, vibraphone, glockenspiel, and four drum kits with brushes and hand percussion. • Four new palettes are built on them, and Daybreak, Timber, Velvet and Haze now play them too. A few synth beads that sounded almost the same as another are gone; loops you made with them still play them. • Hold your phone upright and Octal turns with it. Back, Record and Play sit between the bead and the buttons, and the Loop Deck and Song Deck have their own upright layouts. With Portrait Orientation Lock on, Octal stays upright; turn the lock off in Control Center to play it sideways. • On iPhone Duo, the shut phone turns upright too, with Back, Record and Play in a column under the camera. Open it held sideways and it splits down the fold: the bead and buttons on one half, the Loop Deck on the other. A deck you have out on the outer screen stays where it is when you open the phone. • The Song Deck has undo: Back takes back the song's last change, and holding Back shows the song's history, so you can go back to any step. • Exporting a loop no longer crashes Octal. The audio file, the MIDI file and the zip with every stem are written again.

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Subscriptions & In-App Purchases

$9.99

Octal, the full version

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User reviews

Easy to use, high quality sounds

Just downloaded this app and I’m already really impressed. It’s easy to use, sounds great, and has been a lot of fun experimenting with. I’ve already used it to add some new sounds and layers to my own music, and it’s been a great creative tool. Everything feels smooth and well designed. Definitely worth checking out if you’re into synths or making music on your phone!
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FAQ

What is Octal?

Octal is a mobile application that turns your phone into a musical instrument. It features eight buttons that play chords or notes that always sound good together, making music creation accessible.

Can I make full songs with Octal?

Yes, you can record loops, add drums or bass, and then chain these loops together to create a full song. The full version allows for unlimited loops and songs.

What kind of sounds are available in Octal?

Octal offers a variety of sounds including synths, keys, drum kits, textures, and acoustic instruments. The full version also allows you to create and save your own custom sounds.

How does Octal handle privacy?

Octal collects no personal data. The microphone is only activated when you are actively recording a sound or using the Vocoder feature.

What are the limitations of the free version of Octal?

The free version of Octal allows for four saved loops and one saved song. To unlock unlimited loops and songs, as well as MIDI capabilities and custom sound creation, a one-time purchase is required.

Does Octal have ads?

No, Octal does not have advertisements. The free version is limited in features, and the full version is unlocked with a single purchase.

What devices does Octal support?

Octal is currently supported on iPhones. The app was last updated on October 22, 2026, with version 1.2.0.

How often is Octal updated?

Octal was released on October 15, 2026, and received its latest update on October 22, 2026. This indicates a recent update, suggesting active development.